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Case Reports
Journal Article
Immunomodulatory Therapy and an Insidious Presentation of a Large Intra-Abdominal Abscess.
Delaware Medical Journal 2016 September
Crohn's disease is a disorder characterized by transmural inflammation which can potentially affect any part of the gastrointestinal tract from the mouth to the perianal area. Cohn's disease is a systemic disease characterized by a relapsing remitting course, with variable intestinal and extra-intestinal complications. Abdominal and pelvic abscesses are not an uncommon complication of Crohn's disease occurring in 10-30 percent of all patients. We present the case of a 21-year-old male with Crohn's disease presenting with a massive abdominal abscess, whose diagnosis was delayed given lack of typical symptoms. Shortly after initiating therapy with Prednisone and Adalimumab he presented with worsening abdominal distention. Cross sectional imaging of the abdomen with IV contrast (Figure 1) demonstrated a 34cm x 23 cm x 11 cm rim-enhancing fluid collections in the abdomen and pelvis consistent with a large intra-abdominal abscess. He underwent an exploratory laparotomy, abdominal washout, and wound vacuum placement. Five liters of purulent fluid were aspirated and cultures grew citrobacter, veillonella and candida glabrata. A bowel perforation was suspected as the etiology for abscess formation; however magnetic resonance heterography (Figure2) was unremarkable. He was treated with appropriate antibiotics, antifungal agents, and was started on Aprisa. His course was complicated with recurrence of intra-abdominal abscesses and a colocutaneous fistula for which he underwent an open sigmoidectomy with a diverting loop colostomy. After condirmation of healing with repeat imaging, he was an uneventful postoperative course. He followed as an outpatient and continues to do well on Infliximab. Most abscesses are picked up in their early stages given characteristic symptoms; however in presence of immunosuppressive therapy the host immune system can be suppressed leading to delayed diagnosis. The presence of a massive intra-abdominal purulent fluid collection of this size has not been described on our review of the literature. Furthermore, despite the abscess taking up most of the abdominal cavity, the fairly limited symptom burden highlights the importance of having high degree of clinical suspicion for infectious compications in Crohn's disease patients even when classical symptoms are not present.
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